This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Noting that Android 2.3 supports SIP, I'm wondering what kind of new applications that enables, or how one might use it to enable new functionality. The SDK has a VoIP sample app, but what else is required - a SIP server, like a Servlet API 3.0 container plus an implementation like SailFin/Mobicents? Just an internet connection and the IP address of the receiving end? If the latter, how would VoIP to another Android (or just SIP-capable) phone work? Pointers to further reading would be great, but for starters, some de-confusion would help :-)